Purple pixels

I have read the other threads on this topic and wondered if anyone had a definitive answer from apple....My 15" Pb has just developed the fault but i'm not sure what has caused it and if it is software or hardware related....On my Pb it seems to just affect certian tonal shades which are most apparent on the desktop pattern but can be seen on most windows, however they come and go as you move the windows around. Glad I have taken out AppleCare but slightly worried as the fault isnt continuous so you can bet it wont show up when I get time to take into a Apple Shop......Anybody else been sucessful in getting the prob fixed with no visible fault??? As an aside I had my Logic Board replaced about 18 months ago cos the orginal one kept freezing the Pb....Any thoughts gratefully received!
Cheers
Gareth

Went into the Apple centre in Sheffield who said that it was probably the inverter board and that they could order one in and replace it under Applecare (What a good purchase!!) It would take 10 days to get in and they could then change it onsite in about 3 hrs .......I am traveling all over the country at the moment so said I will get in touch with Apple in Birmingham when I am back home.....Since I have posted this the PB has of course behaved perfectly!!!
It is an annoying fault but I was very pleased with the standard of service that I have had from Apple so far......watch this space and I will let you know how things develop!!
Gareth

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IMac 2010 11,3 Green/Purple Pixels

Hi Guys,
Been browsing the internet for ages, including the apple forums, and always come across similar issues, but never seem to fit mine 100%.
I've got a 27" iMac 2010 11,3 i5.
Basically, about a year or so ago, it started to get these slight green and purple pixels on the screen, more square artifacts than anything else, but it was no problem, because if i'd 'select' them with the cursor, they'd go, as time progressed they've gotten worse and worse, to the point where they would take over the whole screen, again, a simple 'select' all of the screen would remove them for a short while, they never appeared doing anything specfic, but would be guarenteed to turn up.
The system now is only really usuable during Safe Boot, Under normal boot conditions, it will last between 15 seconds and an hour tops, Until it just hangs, the entire GUI is locked, however the Cursor will move, I've left it for a while to see if it will reclaim itself, but to no avail, the only option is to hold down the power until it shuts down.
Now, this only started happening after upgrading to Lion, I've since moved to Mountain Lion, and it still persists, So i decided to do an Apple Hardware Test in Extended mode, I received an error regarding the HDD, which was a 1TB Western Digital Drive, Don't get me wrong, it was slow, but it never seemed to give me issues, so I replaced the hard drive (No Apple care & out of Warranty), with a 2TB Seagate Model, Installed Mountain Lion, instant issues, Straight after succesful install.
I've since done several other Hardware Tests, and the only issue i get is the Hard Drive Sensor, Which I understand because of the 3rd Party hard drive.
So, within the last 3-4 weeks i've reinstalled, Re formatted, Zero'd the hard drive around 15 times, just to see if anything changed.
With Regards to the Safe Mode Boot, Its perfect, never get artifacts, never get a hang, nothing! Same goes for anything other than Normal Boot Conditions.
These pixels can be screenshot and still remain there! They also appear over Screen Sharing.
The system was bought for Graphic Design use, and thats what its needed for, But with it getting to the point of me only being able to work under safe mode, I've run out of options!
From what I know, someting under normal boot conditions is causing the issue, a kext maybe, but I've no idea on which one is causing the issue.
Even if i can get it working with something disabled/removed it's fine, But Photoshop, Illustrator and Indesign are my work, and without being able to use them i'm pretty much limited!
I've obviously tried resetting the SMC/PRAM again, no changes, I've changed the RAM, bought new, swapped out, Nothing no changes.
The system is currently running 10.8.3.
One thing i did notice, is that the system often lasts longer before it hangs under the 64 Bit Kernel, rather than the 32 Bit Kernel (Not sure if thats expected or not but thought it would be worth a mention)
Thanks for all and any advice given in advance!
Ethan.

Hey,
Sorry for a delay in reply!
Well no, i never solved it, I've since stripped the machine and tried to see whats going on, and everything seems perfect.
A company has suggested its the graphics chip, and has offered to re-ball it, but i'm not sure on that yet.
But to add injurt to insult, hald of my display is now flickering every half hour or so.
I think i'm at a loss with it.
Only thing its being used for now is a Target Display Mode for a Mac Mini, which ironically works perfectly, and the hard drive is set up as a shared drive, So it's just a really expensive screen!
Ethan.

Macbook pro freezes with purple pixels

My macbook doesn't want to boot up. I just get the apple with the rotating wheel that goes on for about 60 seconds. Then it either freezes or magically goes to the desktop. If it does get past the freezing spin wheel to the desktop, I have only a matter of time before these crazy purple pixels just flood about a nice portion of the screen. Once I see the random purple pixels there is nothing I can do to get rid of it, It just freezes and I have to shut it down with the power button. I got the computer in 2008 so I don't know if it's dying from old age or maybe it's a virus. It's really frustrating.

There aren't any Mac viruses.
Run the Apple Hardware Test
Intel-based Macs: Using Apple Hardware Test

Macbook Pro freezes at the boot up screen. Purple Pixels occur if I get through the boot up and freezes

My macbook doesn't want to boot up. I just get the apple with the rotating wheel that goes on for about 60 seconds. Then it either freezes or magically goes to the desktop. If it does get past the freezing spin wheel to the desktop, I have only a matter of time before these crazy purple pixels just flood about a nice portion of the screen. Once I see the random purple pixels there is nothing I can do to get rid of it, It just freezes and I have to shut it down with the power button. I got the computer in 2008 so I don't know if it's dying from old age or maybe it's a virus. Also, one time, I saw the flashing globe. It's really frustrating.

Powerbooks are not MacBooks and MacBook are not MacBook Pros. Look under the screen, what you have there is the machine you actually have. See if one of these programs applies:
http://support.apple.com/kb/TS2377
http://www.apple.com/support/macbook-bottomcase/
Run the hardware test here otherwise:
http://docs.info.apple.com/article.html?artnum=303081

Does anyone know how to fix purple pixels on the back camera?

I Was outside running around playing lacrosse and had my phone in my waist band with the back of the phone up against my skin. After running around and getting sweaty I grabbed my phone and there was condensation on the inside of the camera. And now when I try to take pictures it looks like all the pixels are sort of like a purple like the pic above. You can see through it but the purple pixels really disrupt the picture. Has anyone ever had anything like this happen. If so how'd you fix it?

Hello ChrisBaeza21,
Sorry to hear about the camera on your iPhone not working properly. There probably is not a way for you to fix it yourself, but it would be a good idea to have it looked at by Apple, as it may need to be repaired. Because it got wet you may be looking at a repair that you may have to pay for because any liquid exposure is something that is not covered by the limited warranty. If you have AppleCare+, then cost would not be as much. Take a look at the articles below to go over those options to have your iPhone looked at.
iPhone Repair - Other Repairs
http://www.apple.com/support/iphone/repair/other/
Liquid damage to iPhone or iPod isn't covered by warranty
https://support.apple.com/en-us/HT204104
Regards,
-Norm G.

Blue/Purple pixelated apple logo followed by a white screen?

After a system update I was checking some e-mail when my screen turned white. Restarted via holding the powerbutton down for 10 seconds and when it restarted the Blue/Purple Pixelated logo loaded up then the screen flickers black followed by a white screen. I have read over the forums about the matter but many of the white screens of death were of a different manner. Im in a bit of a panic due to some deadlines has anyone else had this issue.

You can try SMC and PRAM resets:
http://support.apple.com/kb/ht3964
http://support.apple.com/kb/HT1379
If no change, take your MBP to an Apple store genius bar and have the technicians perform a free diagnosis to determine what the issue(s) may be.
Ciao.

GREEN AND PURPLE PIXEL DOTS ON IMAC 27 SCREEN!!

*little green and purple pixel dots on my imac27 screen._ The dots are not permanent on to a specific place they change randomly and ive got them on my screen 1-2 times per day 1-2 hours each time (not all the time).Does anyone knows whats happening?

Hi-
Have you applied both iMac 27" firmware fixes?
First, do this...
http://support.apple.com/kb/DL984
and then this...
http://support.apple.com/kb/DL998

Crazy purple pixels cant tell if hardware or software.

just out of nowhere pixels on my screen turn purple. when im watching somthing with video you can really see how the pixels bounce around (lines, blurryness). i archived and installed, same issue. it just seems to turn whole shapes purple somtimes. Like when i start up the apple logo is purple....
should i try erase and install?
i think its the video card. there is no damage to the LCD at all.
if i take a screenshot and veiw the screenshot on another computer and it looks the same, that means it is somthing internal and not the actual lcd right?
im really worried, never had any troubles with my baby before.

Theo, Welcome to the discussion area!
Boot from the Apple Hardware Test disc and see what the test results are.

Computer issue - green/purple pixels in videos before and after rendering and bios shutdown

I built a new desktop for editing video during the summer. In the past week or two I've encountered some serious issues.
Ex. A: http://farm9.staticflickr.com/8476/8374160517_0bb791f218_c.jpg
While editing in Premiere or AE CS6 I've been getting these weird lines appear randomly. If I close the program and re-open it, it'll disappear, and sometimes reappear at another point in the timeline. Really strange. I also have active backgrounds enabled and green or purple patches of pixels will sometimes appear. If I tell windows to go to the next background, the pixels usually go back to normal.
BIOS blue screen shutdown
I could be watching vimeo or youtube or doing video editing and suddenly get a shut down error. It also happened while playing the CRYSIS demo, although I had a perfectly smooth experience until that happened.
Here are my specs:
Windows 7 home premium
MSI 7751 mobo
Intel i7-3770S 3.10GHz
16GB G.Skills Ripjaw RAM
NVIDIA 560 Ti 1GB
500w PSU corsair
WD 1TB caviar black HD
Asus xonar audio card
128 GB sandisk SSD
Do you guys think this is a graphics card or PSU issue? My computer is next to a metal cabinet, but has plenty of room for air ventilation. The graphics card and CPU temps have generally been between 30-40 degrees Celsius, and always under 50 C (even when rendering), so I doubt overheating is an issue. Checked with HWMonitor.
ESET Nod 32 doesn't detect any viruses

>suddenly get a shut down error
What is the text of the error message?
Read Bill Hunt on BSOD http://forums.adobe.com/thread/772169
My best GUESS is that you have a power supply problem
>NVIDIA 560 Ti 1GB - 500w PSU corsair
According to some notes I made http://www.pacifier.com/~jtsmith/GPU.HTM the 560Ti draws 170 watts
Use the Power supply calculator http://extreme.outervision.com/index.jsp (the PRO version has more options) to determine your power supply needs
Even if the calculator says you are "somewhere" under 500 watts, you MAY simply have a "weak" power supply

What causes little green & purple pixels in iPhoto 6 photos?

I have a Power mac G5 and do extensive photo editing within iPhoto6. I have just over 10,000 photos in my iPhoto library (70% imported from hard photos via a scanner and 30% imported directly from my digital cameras). Recently, I noticed the thumbnail photos within iPhoto will show on about 25% of each photo a "swarm" of green and purple pixles. This does not happen every time I am in iPhoto6 - probably about 1/3 of the time. It is clearly an issue that presents itself exclusively on my photos in iPhoto6. It is not a problem with the monitor. A quick internet search generated info that this might be caused by problems in my computer memory or in the video memory card. I am a novice, so this is beyond me. Any idea what might be causing this, is it serious, and how do I correct it?
Thanks,
HDP

HDP
Does this occur anywhere else except iPhoto? If yo view the files with Preview, for Instance? Is it just on the thumbnails in the iPhoto Window or the photos viewed at full size? Or vice versa?
Regards
TD

Purple pixels on my pictures

So...I have a new iPhone, less than a month old. The front facing camera is producing purple halos around lights as well as on high lighted place on faces. I have reset the phone, no help. I am thinking it is a hardware issue as the rear camera is working just fine. Any suggestions?

Here are two pictures I took at different times, different lighting situations....

HT1199 IMAC with purple pixels scattered across the screen at start up

This happens intermittently when I start up the IMAC. Re booting the IMAC is becoming more frequent, and performance is slowing. The latest has been the blue tooth mouce can't be found at start up, so it is taking a couple of reboots to get that far.
The IMAC is coming up for 18 months old. So I was wondering if this was a hardware issue, or a software issue.
The symptom occurs regardless of which user logs in.
I'm not sure how to test the system to see if memory or other is an issue. Or I just need to get a tech to look at it.

Contact Apple Service, iMac Service or Apple's Express Lane. Do note that if you have AppleCare's protection plan and you're within 50 miles (80 KM) of an Apple repair station, you're eligible for onsite repair since yours is a desktop machine.

Annoying Pixels!

I was working on typing something last night, and suddenly the screen flashed full of purple pixels and then they left, so I didn't think anything of it. Well today, those purple pixels are back, but they only show up around certain items of certain colors. I'm using the Frost color scheme and they show up around home, refresh and back and forward arrow buttons on chrome, and any light blue anwhere on the screen, and they move with the blue. I had a windows explorer window open and the pixels followed the blue area around the screen, and they were in a paraellogram shape. Right now they're just annoying since the worst of it is on the windows explorer windows and goes away when it closes and the stuff on the desktop can be hid by a window, but I would like to fix it before it becomes a major problem, especially since I do use my computer for art and video making and the flashing fuzziness is a seizure risk. What happened and how can I fix it?

dv6-3217cl is the model. Those kind of artifacts are almost always the screen. The only other possibility is the video chip. You can test that by attaching to an external monitor. If the output is fine on an external monitor then it is the display panel. The only good news is that the 1366 x 768 panel is not too expensive and fairly easy to replace. Post back with a report on how it looks on an external monitor.

OpenGL bug with Snow Leopard in Photoshop CS4? distorted pixels

Hi all,
Has anyone encountered this bug before? If I open any image or start a new document and hit F to change screen mode I am plagued with random purple pixels with more being displayed as I make the document bigger (see attached screenshots).
However if I turn off OpenGL support, the problem completely disappears. This problem never occured with OS X 10.5.
Macbook Pro Unibody
2.93 GHZ
4GB ram
OSX 10.6.1
GeForce 9600M GT 512MB
Thanks,
Andrew

Yes, we have a handful of bugs filed with Apple about similar issues introduced in MacOS 10.6.
We're all waiting for Apple to release the fixes.

How to get the RGB value of each pixel of a hole image?

Hi,
I'm trying the get the RGB(between 0 and 255) value of each pixel of a hole image. I writte this code:
public void convertImage()
     int w = bufferedImage.getWidth();
     int h = bufferedImage.getHeight();
     int[] rgbs = new int[w*h];/* create a new array */
     bufferedImage.getRGB(0,0,w,h,rgbs,0,w);
     for(int i=0; i<10; i++)
         System.out.println(rgbs);
But the value rgbs[] contain an 8 bits integer, it's possible to have the RGB of this.
In other case, do you have another sample of code to help me to get the RGB value of each pixel of a hole image?
thanks.

Hi, I am currently working on an application which requires the generation of color histograms that are a representation of a given image ie; myImage.jpg. I have made use of the JAI API and used it's Histogram class to generate a histogram vector for the image that I provide.
However, upon closer inpsection, I have realised the following:-
(1) The image, as it contains multiple colours is a multi-banded image ie; this means that each individual pixel in the image contains multiple colour samples (I assume) ie; Red, Blue Green. Due to this, a "separate list of bins represents each individual band". This means that for myImage.jpg, there is not ONE individual vector that contains data such as "400 pixels purple" "5000 pixels yellow" etc but there are indeed 3 vectors that represent the image.
I have found this to be true using the getBinSize(int band, int bin) method call - the first parameter being 0,1,2 for Red Blue or Green.
My basic (or complex) problem is that I basically want to generate 2 color histogram vectors that represent 2 separate images and then compare these vectors "side-by-side" using the vector comparison algorithms that I have already developed.
Is there a way of using Java's Histogram class and it's associated methods to be able to store all colour information for an image in only ONE vector?? I am pretty certain that this is not possible, so my dilemma is now: - If I have an image and it is represented by three separate vectors/histograms, then how can I possibly compare these to say whether an image matches or not.
When a pixel is analysed by a program, what seems to be the result returned is how that pixel is made up in terms of Red, Green or blue ie; a purple pixel is X blue, X red and X green and hence 3 vectos existing.
Can anybody offer advice on how to achieve this task of looking at a pixel and simply determining it's actual color. I would preferably like to keep my code that I have already developed ie; the use of the Java Histoogram class but any other offerings are appreciated.

Purple pixels

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